Takayama Osamu, Crasovan Lucian, Artigas David, Torner Lluis
Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels, Barcelona, Spain.
Phys Rev Lett. 2009 Jan 30;102(4):043903. doi: 10.1103/PhysRevLett.102.043903. Epub 2009 Jan 28.
We report the first experimental observation of Dyakonov surface waves existing at the interface of transparent anisotropic crystals. A Otto-Kretchmann configuration was used to excite the surface waves at the interface between a potassium titanyl phosphate biaxial crystal and an index-matching liquid fulfilling the conditions at which the waves exist. The signature of surface wave excitation was obtained by using enhanced polarization-conversion reflectance phenomena. We measured the cutoff propagation angles for different index-matching liquids, confirming the high sensitivity of the propagation conditions with the properties of the supporting interface.
我们报告了在透明各向异性晶体界面存在的戴亚科诺夫表面波的首次实验观测结果。采用奥托 - 克雷奇曼配置在钛酸氧钾双轴晶体与满足表面波存在条件的匹配液界面激发表面波。通过利用增强的偏振转换反射现象获得了表面波激发的特征信号。我们测量了不同匹配液的截止传播角，证实了传播条件对支撑界面特性的高灵敏度。
